gopls/internal/settings: move file watcher setting to user options
When a setting is internal options, they can be set by the user
but it is generally very hard to discover unless the user look at
the release note or the gopls's code base.
Moving from internal setting to user setting improves the
setting's discoverability.
For golang/go#67995
| Inspect html for hidden footers to help with email filtering. To unsubscribe visit settings. |